Water Hardness Testing Kit - DoubleCheck200 Strips with Sample Cup

About this item

• VERIFY TWICE - Every tester strip has two color pads that are identical. If there is a difference in the color of the pads following the test, it suggests that the test results may not be accurate and another test should be carried out.
• SAMPLE CUP INCLUDED - Ensure the most accurate water hardness tester results by using the included, free sample cup and fill the testing water to the marked level.
• LONGEST SHELF LIFE - Individually wrapped in packs of 50 to prevent unused strips from going bad due to too much contact with air. Dual, top-and-bottom desiccant design forms a dry force shield around the strips which also prevents the strips from going bad due to too much contact with moisture.
• EASILY THE MOST ACCURATE - DoubleCheck to weed out bad color pads, sample cup with pre-measured water level for the most optimum water to test strip ratio, individually wrapped and dual desiccant design gives more accurate results for a longer period of time.
• 200 WATER TEST STRIPS @ $0.04 EACH - Maximize the time between each purchase with the lowest cost-per-test water hardness test strips that are available.